Nineteen millionths (0.000019) in standard form is 1.9 × 10-5
Not sure what you mean by "standard form"; one way to write this is as 120 µm.
10,000 is how << Ten Thousand * * * * * 10,000 is NOT how! Ten thousandths is 0.0001 << one ten-thousandth or one hundred millionths 10 thousandths is actually 1 hundredth >> 0.010
The way you wrote it is the standard form.
'12' is the standard form.
1,095 millionths in decimal form is 0.001095
You write 1,095 millionths in standard form as 1.095 × 10-3
Fifty millionths in standard form is 0.000050
300 millionths in standard form is 3.0 × 10-8
Nineteen millionths (0.000019) in standard form is 1.9 × 10-5
907 millionths in standard form is 9.07 × 10-4In standard notation: 0.000907
135 millionths = 0.000135 = 1.35 x 10-4 in standard form.
100 six-millionths in standard form = 1.666666667 × 10-5
One and 51 millionths (1.000051) in standard form is 1.000051 × 100
0.000020
0.000024
0.000024